Geometrical instruments – Indicator of direction of force traversing natural media – Structurally installed including relation to feature thereof
Patent
1985-02-11
1986-04-08
Stearns, Richard R.
Geometrical instruments
Indicator of direction of force traversing natural media
Structurally installed including relation to feature thereof
33347, 33372, 33508, 273162B, G01C 928, A63B 5300
Patent
active
045803501
ABSTRACT:
Apparatus for promoting straight golf ball flight paths by promoting in flight rotation of a golf ball along its horizontal axis by assuring horizontal alignment of parallel grooves of the face of a golf club as the club strikes a golf ball comprising a frame having an alignment ridge for insertion into one of said parallel grooves, means for securing level indication means to the frame in parallel alignment to the alignment ridge, level indication means, and means for temporarily attaching said frame to the face of a golf club in such a manner that said level indicator indicates the horizontal alignment of said parallel grooves.
REFERENCES:
patent: 2670209 (1954-02-01), Fay
patent: 2923552 (1960-02-01), Sundberg
patent: 2976046 (1961-03-01), McCullough, Jr.
patent: 3909004 (1975-09-01), Vella
patent: 4079520 (1978-03-01), Davis
patent: 4208802 (1980-06-01), Berndt
Smith Michael C.
Stearns Richard R.
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